Crossbow buttstock



FIG. 1 is an angled view of the crossbow buttstock.

FIG. 2 is a top view of the crossbow buttstock.

FIG. 3 is a bottom view of the crossbow buttstock.

FIG. 4 is a back view of the crossbow buttstock.

FIG. 5 is a front view of the crossbow buttstock.

FIG. 6 is a left side view of the crossbow buttstock; and,

FIG. 7 is a right side view of the crossbow buttstock.

The dash-dot-dot broken lines in the Figures represent unclaimed portions of the buttstock only; the evenly broken lines depict boundary of the claimed design. The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a crossbow buttstock, as shown and described. 